diff --git a/docs-src/api-body.md b/docs-src/api-body.md
index e3c4e09528..b7ef5b55ae 100644
--- a/docs-src/api-body.md
+++ b/docs-src/api-body.md
@@ -1861,7 +1861,7 @@ await page.waitForRequest(request => request.url().searchParams.get('foo') === '
 ```
 
 #### page.waitForResponse(urlOrPredicate[, options])
-- `urlOrPredicate` <[string]|[RegExp]|[Function]> Request URL string, regex or predicate receiving [Response] object.
+- `urlOrPredicate` <[string]|[RegExp]|[function]\([Response]\):[boolean]> Request URL string, regex or predicate receiving [Response] object.
 - `options` <[Object]> Optional waiting parameters
   - `timeout` <[number]> Maximum wait time in milliseconds, defaults to 30 seconds, pass `0` to disable the timeout. The default value can be changed by using the [browserContext.setDefaultTimeout(timeout)](#browsercontextsetdefaulttimeouttimeout) or [page.setDefaultTimeout(timeout)](#pagesetdefaulttimeouttimeout) methods.
 - returns: <[Promise]<[Response]>> Promise which resolves to the matched response.